It seems like the development of the sequel for Trainspotting is on a roll, as after confirming that the movie is on, Danny Boyle recently confirmed someother promising details.

Boyle spoke about the film in an interview with The Hollywood Reporter while promoting his latest film, Steve Jobs. The director revealed that prinicipal photography for the sequel is expected to begin in May or June next year. The schedule has been worked out keeping in mind the other commitments of the core members of the original cast, who are set to return. Until recently it was still unclear if all four actors -- Ewan McGregor, Jonny Lee Miller, Robert Carlyle and Ewen bremmer -- would be able to return for the project and work things out at the same time. But now Boyle has confirmed that all four will be coming back.

Boyle did add that to make this happen they might have to work with a very tight schedule and wrap filming quickly.

"They only get this little window off, so either you wait for the contract to run down, which could be as late as three years, or you kind of try and do it in this window," he said. "But all four lads are back in."

The director also spoke about the budget of the film and how it will in someway similar to how the orginal was made (in just $2million).

"We're doing it for less than $20 million, and that'll give us control of the film so we can make the film we want to make," he said. "That's as much as you can get without being answerable to anybody. You can sort of get on with it without much interference. Although we could have raised a lot more money for this, we didn't, so we're trying to keep some sense like we kept the original."